Intel Core i9-12950HX vs Intel Core Ultra 7 265H Comparison

The Intel Core i9-12950HX and Intel Core Ultra 7 265H are both 16-core mobile processors, yet they represent two distinct design philosophies from Intel. The 12950HX is a high-power Alder Lake-HX part with 24 threads and a 55W TDP, while the 265H is a leaner Arrow Lake-HX chip with 16 threads and a 28W TDP. Benchmark data shows the two chips split wins 5 to 12 in favor of the Ultra 7, but the nature of those wins reveals a clear performance profile for each. The i9 dominates in integer-heavy and compression workloads, while the Ultra 7 takes decisive leads in floating-point, encryption, and single-threaded tasks. Both processors achieve an 88th percentile ranking among all CPUs, indicating they are closely matched overall despite their architectural differences.

FAQ

Q: Which processor has more threads?

A: The Intel Core i9-12950HX has 24 threads, while the Intel Core Ultra 7 265H has 16 threads. Both have 16 cores, but the i9 supports Hyper-Threading, doubling its thread count.

Q: What is the performance difference in single-core benchmarks?

A: The Core Ultra 7 265H is consistently faster in single-core tests. It leads by 10.7% in Cinebench R15 single-core, 8.8% in R20 single-core, 9.4% in R23 single-core, and 12.8% in PassMark single-thread tests.

Q: Which processor wins in multi-core Cinebench tests?

A: The results are split. The i9-12950HX wins Cinebench R15 multi-core by 3.9% and R23 multi-core by 1.6%, while the Ultra 7 265H wins R20 multi-core by 8.8%.

Q: How do they compare in data compression and encryption?

A: The i9-12950HX is 9.9% faster in PassMark data compression. The Ultra 7 265H is 17.7% faster in PassMark data encryption.

Q: What are the TDP differences between the two?

A: The i9-12950HX has a TDP of 55W, while the Ultra 7 265H has a TDP of 28W. The Ultra 7 achieves its performance with significantly lower power draw.

Q: Which processor has a newer manufacturing process?

A: The Ultra 7 265H uses a 3 nm process from TSMC, while the i9-12950HX uses Intel's 10 nm process. The Ultra 7 also features a larger L1 cache of 192 KB per core compared to 80 KB per core on the i9.

Architecture Differences

The two processors are built on fundamentally different architectures. The i9-12950HX uses the Alder Lake architecture (codename Alder Lake-HX) on a 10 nm process, while the Ultra 7 265H uses the Arrow Lake architecture (codename Arrow Lake-H) on a 3 nm process from TSMC. This node advantage is significant, as the Ultra 7 packs more transistors into a smaller space, though the die size for the 265H is not listed in the data.

Cache layouts differ substantially. The i9 has 80 KB of L1 cache and 1.25 MB of L2 cache per core, with 30 MB of shared L3 cache. The Ultra 7 doubles the L1 to 192 KB per core and increases L2 to 3 MB per core, but reduces L3 to 24 MB shared. This larger per-core cache on the Ultra 7 likely contributes to its strong single-threaded performance, while the i9's larger L3 pool helps in certain multi-threaded scenarios.

Memory support also diverges. The i9 supports both DDR4 and DDR5, while the Ultra 7 supports DDR5 and LPDDR5X. The Ultra 7 lists a memory bandwidth of 102.4 GB/s, a figure not provided for the i9. Both use dual-channel memory buses and support ECC memory. The i9 offers more PCIe lanes (20 Gen 5 lanes vs. 8 Gen 5 lanes on the Ultra 7), which matters for expandability.

Integrated graphics differ as well. The i9 uses UHD Graphics 770, while the Ultra 7 features Arc Graphics 140T. The i9 has a higher base clock of 2.30 GHz versus 2.20 GHz on the Ultra 7, but the Ultra 7 boosts higher at 5.30 GHz versus 5.00 GHz. The i9 has a TDP of 55W, nearly double the Ultra 7's 28W, and uses a different socket (BGA 1964 vs. BGA 2049).

Where Each One Wins

The i9-12950HX dominates in integer math and compression tasks. It leads PassMark integer math by 28.2%, data compression by 9.9%, and random string sorting by 1.1%. It also wins Cinebench R15 multi-core by 3.9% and R23 multi-core by 1.6%. These results suggest the i9 is better suited for workloads that rely on heavy integer arithmetic, such as code compilation, spreadsheet calculations, and some database operations.

The Ultra 7 265H wins in floating-point, encryption, and single-threaded tasks. Its largest victory is in PassMark find prime numbers, where it leads by 59.7%. It also wins floating-point math by 26.3%, extended instructions by 17.3%, data encryption by 17.7%, and physics by 16.5%. The Ultra 7 takes all single-core Cinebench tests (R15, R20, R23) and PassMark single-thread tests by margins ranging from 8.8% to 12.8%. It also wins Cinebench R20 multi-core by 8.8% and PassMark multithread by 6.9%.

This split creates a clear use-case divide. The i9 is the choice for integer-heavy, multi-threaded productivity where raw thread count matters. The Ultra 7 excels in scientific computing, encryption, and any application that benefits from high single-core clocks and efficient floating-point execution. For general desktop responsiveness, the Ultra 7's single-thread advantage is more noticeable.

Specification Differences

| Specification | Intel Core i9-12950HX | Intel Core Ultra 7 265H |

|---|---|---|

| Cores | 16 | 16 |

| Threads | 24 | 16 |

| Base Clock | 2.30 GHz | 2.20 GHz |

| Boost Clock | 5.00 GHz | 5.30 GHz |

| TDP | 55W | 28W |

| Socket | Intel BGA 1964 | Intel BGA 2049 |

| Architecture | Alder Lake | Arrow Lake |

| Process Node | 10 nm | 3 nm |

| Foundry | Intel | TSMC |

| Die Size | 215 mm² | Not listed |

| L1 Cache | 80 KB (per core) | 192 KB (per core) |

| L2 Cache | 1.25 MB (per core) | 3 MB (per core) |

| L3 Cache | 30 MB (shared) | 24 MB (shared) |

| Memory Support | DDR4, DDR5 | DDR5, LPDDR5X |

| Memory Bandwidth | Not listed | 102.4 GB/s |

| PCIe | Gen 5, 20 Lanes (CPU only) | Gen 5, 8 Lanes (CPU only) |

| Integrated Graphics | UHD Graphics 770 | Arc Graphics 140T |

| Release Date | 2022-05-09 | 2025-01-12 |

| Launch MSRP | $590 | Not listed |

| Part Number | SRLGG | SRQAQ |

Head-to-Head Benchmarks

The single largest win for the Ultra 7 265H is in PassMark find prime numbers, where it scores 335 against the i9's 135, a 59.7% advantage. This is a massive gap that indicates the Ultra 7's architecture handles iterative integer loops far more efficiently. The Ultra 7 also wins floating-point math by 26.3% (109123 vs. 80402), a substantial margin for scientific and engineering applications.

The i9-12950HX's biggest win is in PassMark integer math, scoring 109586 versus 85479, a 28.2% lead. This is the i9's most decisive victory and highlights its strength in traditional integer workloads. The i9 also wins data compression by 9.9% (367930 vs. 334711), a notable margin for file archiving and compression tasks.

In Cinebench, the results are mixed. The i9 wins R15 multi-core by 3.9% (3107 vs. 2989) and R23 multi-core by 1.6% (20263 vs. 19940). The Ultra 7 wins R20 multi-core by 8.8% (12131 vs. 11061) and all single-core tests. The R20 multi-core result is particularly interesting, as it contradicts the R15 and R23 outcomes, suggesting the Ultra 7's architecture scales differently across workload generations.

In PassMark multithread, the Ultra 7 wins by 6.9% (34027 vs. 31673), despite having 8 fewer threads. This indicates that the Ultra 7's higher IPC and clock speed compensate for its lack of Hyper-Threading. The Ultra 7 also wins PassMark physics by 16.5% (2497 vs. 2084) and data encryption by 17.7% (26005 vs. 21395).

The i9's only other wins are in random string sorting (1.1% lead) and the two multi-core Cinebench tests mentioned. The overall win count is 12 for the Ultra 7 and 5 for the i9, but the i9's integer math win is the largest single margin among its victories.

The Verdict

The data presents a clear choice based on workload. The Intel Core i9-12950HX is the better option for integer-heavy, multi-threaded tasks. Its 28.2% lead in PassMark integer math and 9.9% lead in data compression make it the superior processor for code compilation, data processing, and compression workloads. The 24 threads provide a tangible advantage in highly parallel integer operations, as evidenced by its Cinebench R15 and R23 multi-core wins.

The Intel Core Ultra 7 265H is the better all-around performer for most other tasks. Its 59.7% lead in prime number calculation and 26.3% lead in floating-point math make it ideal for scientific computing, financial modeling, and any workload involving heavy mathematical computation. The 12.8% single-thread advantage translates to snappier application responsiveness and faster single-threaded application performance. The 17.7% encryption win and 17.3% extended instructions win further broaden its appeal for security and multimedia tasks.

For users prioritizing battery life and efficiency, the Ultra 7's 28W TDP versus the i9's 55W TDP is a decisive factor. The Ultra 7 achieves similar or better multi-core performance in several tests while using nearly half the power. The i9's higher PCIe lane count (20 vs. 8) makes it more suitable for laptops needing extensive external connectivity, such as discrete GPU configurations or multiple NVMe drives.

In terms of overall average benchmark scores, the i9 edges out the Ultra 7 with 42487 versus 41621, a difference of about 2%. Both sit at the 88th percentile of all CPUs. The i9's nearest rival is the desktop Core i9-12900K (0.4% delta), while the Ultra 7's closest competitor is the Intel Core 7 251TE (-0.1% delta). This proximity to desktop-class performance for the i9 and server-class efficiency for the Ultra 7 defines their respective identities. Choose the i9 for raw integer throughput and multi-threaded productivity; choose the Ultra 7 for efficiency, single-thread speed, and floating-point excellence.